$DESCRIPTION_OF_YOUR_USECASE_GOES_HERE Moreover Documentation/filesystems/proc.txt should be updated as well.
Other than that, the patch looks good to me. On Fri 03-02-17 15:33:22, Shaohua Li wrote: > Cc: Michal Hocko <[email protected]> > Cc: Minchan Kim <[email protected]> > Cc: Hugh Dickins <[email protected]> > Cc: Johannes Weiner <[email protected]> > Cc: Rik van Riel <[email protected]> > Cc: Mel Gorman <[email protected]> > Cc: Andrew Morton <[email protected]> > Signed-off-by: Shaohua Li <[email protected]> after the description is added and documentation updated Acked-by: Michal Hocko <[email protected]> > --- > fs/proc/task_mmu.c | 8 +++++++- > 1 file changed, 7 insertions(+), 1 deletion(-) > > diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c > index ee3efb2..8f2423f 100644 > --- a/fs/proc/task_mmu.c > +++ b/fs/proc/task_mmu.c > @@ -440,6 +440,7 @@ struct mem_size_stats { > unsigned long private_dirty; > unsigned long referenced; > unsigned long anonymous; > + unsigned long lazyfree; > unsigned long anonymous_thp; > unsigned long shmem_thp; > unsigned long swap; > @@ -456,8 +457,11 @@ static void smaps_account(struct mem_size_stats *mss, > struct page *page, > int i, nr = compound ? 1 << compound_order(page) : 1; > unsigned long size = nr * PAGE_SIZE; > > - if (PageAnon(page)) > + if (PageAnon(page)) { > mss->anonymous += size; > + if (!PageSwapBacked(page)) > + mss->lazyfree += size; > + } > > mss->resident += size; > /* Accumulate the size in pages that have been accessed. */ > @@ -770,6 +774,7 @@ static int show_smap(struct seq_file *m, void *v, int > is_pid) > "Private_Dirty: %8lu kB\n" > "Referenced: %8lu kB\n" > "Anonymous: %8lu kB\n" > + "LazyFree: %8lu kB\n" > "AnonHugePages: %8lu kB\n" > "ShmemPmdMapped: %8lu kB\n" > "Shared_Hugetlb: %8lu kB\n" > @@ -788,6 +793,7 @@ static int show_smap(struct seq_file *m, void *v, int > is_pid) > mss.private_dirty >> 10, > mss.referenced >> 10, > mss.anonymous >> 10, > + mss.lazyfree >> 10, > mss.anonymous_thp >> 10, > mss.shmem_thp >> 10, > mss.shared_hugetlb >> 10, > -- > 2.9.3 > -- Michal Hocko SUSE Labs
